We have had excellent luck with our 7100 series mobiles and portables so we decided to stay with Harris.
If you'd had some XTS5Ks to deploy for evaluation, there's absolutely no way you'd have stuck with Harris.
I have multiple examples of both the 7100 portables and 5Ks as well. There's really no comparison. The 7100 works and is reliable but may be the worst sounding portable radio ever made in the public safety market. The 5K simply outclasses the 7100. It isn't even close.
For virtually every kind of radio activity I had to deal with in my years as a full time radio tech, I kept a
variety of radios programmed up to support my customers, and to support almost any of them I
could grab a 7100 off the shelf and use it, or grab a 5000 off the shelf and use it. After trying both, many
times in many applications, I just eventually stopped using the 7100s entirely except for using them on a proprietary (edacs) system where the 5K won't work.
Going inside them, the general impression is "M/A-Com designed the jaguar/7100 series radios that's built cheap like a 90's cell phone. But Motorola really ENGINEERED a superlative platform with the XTS5000.".
Really, it's true. A P7100 is constructed almost exactly the same way as a Nokia 2160. CHEAP.